It is in fact the core security mechanism - we cannot reverse the 2nd law of thermodynamics. Probably doesn't do much for singularity.
It's the perfect cover for high/hyperinflation though.
I think this is meaningless junk, again ( https://news.ycombinator.com/item?id=26134264 )
I don't think it has ever been easier for a software to make money than it is right now. The volatility of these markets together with the obscure nature of many of the cryptocurrencies and the fact that many vendors are starting to accept them is an interesting win for any singularity.